tsamsoniw writes: Amazon has announced that later this year, it will start offering Amazon Coins, a form of digital currency customers can use to buy apps, games, or in-app content for the Kindle — but not, say, music or videos or subscriptions or anything else for the device. The company said it will dole out millions of Amazon Coins to customers when the program goes live, so developers should get their apps submitted and approved by April 25th. Each coin is worth one cent, and developers will still get the same 70 percent cut they would per sale as they would if a customer used standard currency. Or to paraphrase an old episode of "The Simpsons, "It's money made just for Kindle apps, and it works like regular money, but it's, er, fun."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals